In Reply to: Mystery Headphone Device (by Moth?) posted by ItAintAllMath on January 25, 2022 at 14:01:46:
It's a simple amplifier to headphone convertor. Antique Sound Labs and other companies made them, and perhaps they still do. Resistors reduce speaker amp power output to a level headphnes can endure.
Maybe not as good as a dedicated transformer-based solution, but workable nonetheless.
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Follow Ups
- Ther have been other variants of this in the past... - peppy m. 16:51:37 01/25/22 (1)
- RE: Ther have been other variants of this in the past... - ItAintAllMath 07:54:13 01/26/22 (0)